- Delivery expected < 12 hours after randomization - this includes 1) ruptured membranes with cervical dilation ≥ 3cm or more than 6 contractions per hour unless pitocin is deferred for at least 12 hours 2) evidence of non-reassuring fetal status requiring immediate delivery 3) chorio-amnionitis 4) Cervical dilation ≥ 8 cm